Improvement in water-heater foe steam-boilebs



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- Letters Patent No. 79,523,. dated June so, 1868.

IMPROVEMENT IN WATER-HEATER FOB. STEAM-BOILERS.

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TO ALL WHOM IT MAYCONCERN:

Be it known that I, A. H. WALKER, of Oswego, inthe coun y of Oswegmand State of New York, have invented a new and improved Water-Heater; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art'to make and use the same, reference being had to the accompanying drawings, forming part of this specification.

Figure 1 is aside elevation of my heater.

Figure 2 is a transverse section of the same, through as :v, fig. 1.

Similar letters of reference indicate corresponding parts.

This inventionrelates to the heating of water for steam-boilers, by means of exhaust or other Steam.

The invention consists in providing a drum with aninternal annular water-space, which is connected by pipes to the ste'amboiler, and also to the reservoir, so that the water from the reservoir can be repeatedly passed through the water-chamber, which M by xhgust steam from the boiler, in the manner hereinafter more fully described.

A is the drum, B B the heads or ends'of same, 0 C G pipes conveying the exhausted or other steam for,

imparting its heat-to the water.

The pipe C is screwed into or otherwise securely fastened into vertical plates or diaphragms, which are shown in section at a a a a, thus forminga water-space, b b b b, which receives the water to be heated. Apipe,

1), opening into this water-space, connects with any suitable tank or reservoir, Another pipe, E, also opening into the said water-space, connects with the supply-pipe of the boiler.

A return-pipa F, opening into the water-space b b b b, at some point remote from the pipe D, also connects with the said tank or reservoir,,for a purpose to be shown. 7

When in operation, the exhaust steam passing through the pipe G CC, imparts, by conduction, aportion of its-heat to the water within the space 6 b I) b, and-the water. thus heated is conveyed, by means of the pipe F,- back to the said tank or reservoir, from whence it is reeonveyed through the pipe D back to the water-space b b b b, and this operation repeated until it is brought to any desired degree of temperature, when it can then I be supplied to the boilerby means of the pipe E, or another pipe leading from the said tank directly tothe boiler. By means of the pipes D and F connecting with the tank and the space 6 6 b b, the water can be forced to pass repeatedly through the heater, as before shown, until raised to theboiling-point.

This reflux of the water is regulated by the cock G, placed in the pipe F, as shown, and-by closing the cock the water can be cut 011 from the repeated circulation above described, and conveyed to the boiler at the temperature acquired by one passage through the heater. Any suitable forcing-pump may be used for forcing the water through the heater and back into the tank.

The steam-chambers assist in bringing the steam in' c'ontact with the diaphragms.a a a a, thus assisting to heat the water within thespace b b b b.

This heater combines the qualities of simplicity, cheapness, and durability with that of effective and rapid heating.

' I claim as new, and desire to secure by Letters Patent-- I e The arrangement of the pipes C, C, and C, chambers h h, partitions a, annular chamber 1;, drum A, and pipes E and D, substantially as herein set forth. v

. A. H. WALKER. Witnesses:

ANDREW Frsx, G. J. Co-nmsn'. 

